It’s easy . . . just grab a Bob's Knob collimation thumbscrew and turn. You can even do it while looking through the eyepiece on most telescopes for immediate feedback. And you'll never drop that pesky little Allen wrench or screwdriver into the grass again. Installation is a snap with the included instructions, and you can undo the modification at any time.
We also offer knobs for no-tools setup of select Losmandy, Celestron, and TeleVue tripods. Check our mounts section for details.
Try our custom knobs, where you can choose from a wide selection of screw sizes and knob styles for all your telescope thumbscrew and hand bolt needs.
Here’s how to order Bob’s Knobs.
Our product brochures and installation instructions are available for download. Our FAQ and technical papers are loaded with tips and tricks.
Don’t see what you need? Contact us using the link at the bottom of this page.
BE SURE KNOB THREADS AND FACTORY SCREW THREADS MATCH (LENGTH, DIAMETER, AND THREAD PITCH) BEFORE INSTALLATION